*{
    margin:0;
    padding: 0;
}

body{
    position: fixed;
    width: 100%;
    height: 100%!important;
    overflow: hidden;
}
body #webcam{
    position: absolute;
    top:0;
    left: 0;
    right: 0;
    width: 100%;
    height: 100%;
    video{
        width: 100%;
        height: 100%;
    }
    button{
            position: absolute;
    top: 0;
    }
}
